P89LPC9351FDH,518 Datasheet P89LPC9351FDH,518 | P10-P12

Preliminary data sheet Rev. 01 — 19 November 2008 10 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

[1] Input/output for P1.0 to P1.4, P1.6, P1.7. Input for P1.5.

P3.0/XTAL2/

CLKOUT

9 I/O P3.0 — Port 3 bit 0.

O XTAL2 — Output from the oscillator ampliﬁer (when a crystal oscillator option is

selected via the ﬂash conﬁguration.

O CLKOUT — CPU clock divided by 2 when enabled via SFR bit (ENCLK -TRIM.6).

It can be used if the CPU clock is the internal RC oscillator, watchdog oscillator or

external clock input, except when XTAL1/XTAL2 are used to generate clock source

for the RTC/system timer.

P3.1/XTAL1 8 I/O P3.1 — Port 3 bit 1.

I XTAL1 — Input to the oscillator circuit and internal clock generator circuits (when

selected via the ﬂash conﬁguration). It can be a port pin if internal RC oscillator or

watchdog oscillator is used as the CPU clock source, and if XTAL1/XTAL2 are not

used to generate the clock for the RTC/system timer.

7IGround: 0 V reference.

21 I Power supply: This is the power supply voltage for normal operation as well as

Idle and Power-down modes.

Table 3. Pin description

…continued

Symbol Pin Type Description

PLCC28,

TSSOP28

Preliminary data sheet Rev. 01 — 19 November 2008 11 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

7. Functional description

Remark: Please refer to the P89LPC9351

User manual

for a more detailed functional

description.

7.1 Special function registers

Remark: SFR accesses are restricted in the following ways:

• User must not attempt to access any SFR locations not deﬁned.

• Accesses to any deﬁned SFR locations must be strictly for the functions for the SFRs.

• SFR bits labeled ‘-’, ‘0’ or ‘1’ can only be written and read as follows:

– ‘-’ Unless otherwise speciﬁed, must be written with ‘0’, but can return any value

when read (even if it was written with ‘0’). It is a reserved bit and may be used in

future derivatives.

– ‘0’ must be written with ‘0’, and will return a ‘0’ when read.

– ‘1’ must be written with ‘1’, and will return a ‘1’ when read.

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Preliminary data sheet Rev. 01 — 19 November 2008 12 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

Table 4. Special function registers

* indicates SFRs that are bit addressable.

Name Description SFR

addr.

Bit functions and addresses Reset value

MSB LSB Hex Binary

Bit address E7 E6 E5 E4 E3 E2 E1 E0

ACC* Accumulator E0H 00 0000 0000

ADCON0 A/D control

8EH ENBI0 ENADCI0 TMM0 EDGE0 ADCI0 ENADC0 ADCS01 ADCS00 00 0000 0000

ADCON1 A/D control

97H ENBI1 ENADCI1 TMM1 EDGE1 ADCI1 ENADC1 ADCS11 ADCS10 00 0000 0000

ADINS A/D input

select

A3H ADI13 ADI12 ADI11 ADI10 ADI03 ADI02 ADI01 ADI00 00 0000 0000

ADMODA A/D mode

C0H BNDI1 BURST1 SCC1 SCAN1 BNDI0 BURST0 SCC0 SCAN0 00 0000 0000

ADMODB A/D mode

A1H CLK2 CLK1 CLK0 - ENDAC1 ENDAC0 BSA1 BSA0 00 000x 0000

AD0BH A/D_0

boundary high

BBH FF 1111 1111

AD0BL A/D_0

boundary low

A6H 00 0000 0000

AD0DAT0 A/D_0 data

C5H 00 0000 0000

AD0DAT1 A/D_0 data

C6H 00 0000 0000

AD0DAT2 A/D_0 data

C7H 00 0000 0000

AD0DAT3 A/D_0 data

F4H 00 0000 0000

AD1BH A/D_1

boundary high

C4H FF 1111 1111

AD1BL A/D_1

boundary low

BCH 00 0000 0000

AD1DAT0 A/D_1 data

D5H 00 0000 0000

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P45 P46-P48 P49-P51 P52-P54 P55-P57 P58-P60 P61-P63 P64-P66 P67-P69 P70-P72 P73-P74

P89LPC9351FDH,518

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Microcontrollers - MCU 8-bit Microcontrollers - MCU Enhanced LPC935

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